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Struct CodingIndependentCodePoints

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pub struct CodingIndependentCodePoints {
    pub color_primaries: u8,
    pub transfer_function: u8,
    pub matrix_coefficients: u8,
    pub is_video_full_range_image: bool,
}
Expand description

Coding-independent code points (cICP) specify the color space (primaries), transfer function, matrix coefficients and scaling factor of the image using the code points specified in ITU-T-H.273.

See https://www.w3.org/TR/png-3/#cICP-chunk for more details.

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§color_primaries: u8

Id number of the color primaries defined in ITU-T-H.273 in “Table 2 - Interpretation of colour primaries (ColourPrimaries) value”.

§transfer_function: u8

Id number of the transfer characteristics defined in ITU-T-H.273 in “Table 3 - Interpretation of transfer characteristics (TransferCharacteristics) value”.

§matrix_coefficients: u8

Id number of the matrix coefficients defined in ITU-T-H.273 in “Table 4 - Interpretation of matrix coefficients (MatrixCoefficients) value”.

This field is included to faithfully replicate the base ITU-T-H.273 specification, but matrix coefficients will always be set to 0, because RGB is currently the only supported color mode in PNG.

§is_video_full_range_image: bool

Whether the image is a full range image or a narrow range image.

This field is included to faithfully replicate the base ITU-T-H.273 specification, but it has limited practical application to PNG images, because narrow-range images are quite rare in practice.

Trait Implementations§

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impl Clone for CodingIndependentCodePoints

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fn clone(&self) -> CodingIndependentCodePoints

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CodingIndependentCodePoints

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for CodingIndependentCodePoints

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fn eq(&self, other: &CodingIndependentCodePoints) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for CodingIndependentCodePoints

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impl Eq for CodingIndependentCodePoints

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impl StructuralPartialEq for CodingIndependentCodePoints

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.